These great hollow globes of artificial super-metals, and artificial transparent adamant, ranged in size from the earliest and smallest structures, which were no bigger than a very small asteroid, to spheres considerably larger than the Earth. (Olaf Stapledon, STAR MAKER)
Sunday, October 6, 2013
Today's Astronomy Picture of the Day shows us NGC 1275 in the constellation of Perseus. Debris and filaments order themselves into structures thousands upon thousands of light years in size.